Ethernet with WIZnet w5500

[mirek23]

Is it possible to use Arduino_ConnectionHandler with WIZnet w5500 based modules + arduino boards?

[pennam]

There is not builtin support, but it is possible. Take a look to:

• Support for Ethernet connections, e.g. via MKR ETH shield #41
• Added Example and Bug fixes on Ethernet #70

[mirek23]

Hi Mattia,

Thank you for your hints:

1. Uncomment this line:
   

   Arduino_ConnectionHandler/src/Arduino_ConnectionHandler.h

   Line 116 in 1bff3e3

   //#define ARDUINO_ETHERNET_SHIELD /* Uncomment this line if you want to use a ethernet shield via e.g. MKR ETH Shield */

2. Instantiate Ethernet_ConnectionHandler in thing_properties.h:

   byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
   EthernetConnectionHandler ArduinoIoTPreferredConnection(mac);

3. Pass to ArduinoIoTCloud (as usual):

   ArduinoCloud.begin(ArduinoIoTPreferredConnection, "mqtts-sa.iot.oniudra.cc");

I have introduced changes to the code you suggested. I use arduino nano + WIZnet W5500 Ethernet module and I get the following error which refers to ArduinoIoTCloud.h (CBORDecoder.h):

In file included from /home/mirek/Arduino/libraries/ArduinoIoTCloud/src/ArduinoIoTCloud.h:35:0,
                 from /home/mirek/Arduino/Nano_LAN/thingProperties.h:7,
                 from /home/mirek/Arduino/Nano_LAN/Nano_LAN.ino:30:
/home/mirek/Arduino/libraries/ArduinoIoTCloud/src/cbor/CBORDecoder.h:29:10: fatal error: list: No such file or directory
 #include <list>
          ^~~~~~
compilation terminated.
exit status 1

Compilation error: exit status 1

[pennam]

for which board are you trying to build the sketch?

[mirek23]

I am trying to compile the sketch for Arduino Nano + WIZnet W5500. I have tested Arduino Nano + WIZnet W5500 with Ethernet and SPI libraries using Arduino IDE and developed the telnet, HTTP servers, MQTT client so this combination works but I can not integrate it with Arduino cloud.

[pennam]

The Arduino Nano and all AVR boards are not supported by ArduinoIoTCloud. The Nano in particular does not have enough RAM to complete a TLS handshake. You can find the list of supported boards here: https://github.com/arduino-libraries/ArduinoIoTCloud?tab=readme-ov-file#what

[mirek23]

I changed the board to raspberry pi pico + WIZnet W5500.
I followed your instruction:

Arduino_ConnectionHandler/src/Arduino_ConnectionHandler.h

Line 116 in 1bff3e3

//#define ARDUINO_ETHERNET_SHIELD /* Uncomment this line if you want to use a ethernet shield via e.g. MKR ETH Shield */

but there is no line:

//#define ARDUINO_ETHERNET_SHIELD /* Uncomment this line if you want to use a ethernet shield via e.g. MKR ETH Shield */

in Arduino_ConnectionHandler.h
even if I define BOARD_HAS_ETHERNET
the compilation fails with an error:

thingProperties.h:22:3: error: 'ArduinoCloud' was not declared in this scope
   22 |   ArduinoCloud.setBoardId(DEVICE_LOGIN_NAME);

if I define #define HAS_TCP
I get more errors.

[per1234]

Hi @mirek23. Thanks for your interest in this open source project. This issue tracker is only to be used to report bugs or feature requests specific to the project. It is OK for you to submit an issue requesting the addition of formal support for the WIZnet Ethernet controllers, but this is not an appropriate place to support you in your project. We do that over on Arduino Forum. I'm sure we will be able to help you out over there:

https://forum.arduino.cc/

UPDATE: forum topic here: https://forum.arduino.cc/t/wiznet-5500-and-arduino-cloud/1336373